Lizzy asks: The creation of microplastics and the dangers
Interview on the topic of microplastics
Lizzy asks: Ass.Prof. Mag. Dr.rer.nat. Christian Zafiu from the Institute for Waste and Recycling Management at BOKU about the formation of microplastics and the dangers posed by microplastics in the environment.
video content
Ass.Prof. Mag. Dr.rer.nat. Christian Zafiu is an assistant professor at the University of Natural Resources and Life Sciences at the Institute for Waste and Circular Economy, who works on waste forensics and thus on the fate of waste materials in our environment.
The risk posed by microplastics is significant, especially because our knowledge of the associated dangers is still limited. Microplastics are known to contain harmful substances, particularly in certain types of waste such as electrical appliances. These particles can penetrate the human body and accumulate in almost all organs. We do not yet know the full extent of this, which requires continued monitoring and development of countermeasures.
Microplastics are divided into primary and secondary microplastics. Primary microplastics are produced directly in this form, for example as an additive in cosmetics for skin peeling, or are used in industrial processes. Its use in cosmetic products is now banned in many places because it has been recognized as an avoidable source. Primary microplastics can be further classified into Type A, which is deliberately produced, and Type B, which is created through abrasion processes such as tires.
Secondary microplastics result from the breakdown of larger pieces of plastic, such as bottles, that end up in the environment. This decay is accelerated by biological, chemical and physical influences, such as solar radiation or mechanical abrasion, and leads to the formation of fine microplastic particles.
In order to reduce the entry of microplastics into the environment, it is crucial not to carelessly release plastic waste into the environment and, if possible, to replace it with quickly degradable plastics. Proper disposal of plastic products is essential to prevent them from entering the environment in the first place.
FAQ – Frequently asked questions about microplastics
Who will be interviewed about microplastics in the interview?
In the interview titled "Lizzy Asks," Associate Professor Dr. Christian Zafiu from the Institute of Waste Management and Circular Economy at BOKU is interviewed. Dr. Zafiu is an expert in the field of waste forensics and researches what happens to waste materials in the environment.
What are the main dangers of microplastics?
The dangers of microplastics are considered significant, although our knowledge of them is still limited. It is known that microplastics can absorb harmful substances. One of the biggest concerns is that these particles can accumulate in almost all human organs, posing a potential health risk.
What is the difference between primary and secondary microplastics?
The main difference between primary and secondary microplastics lies in their origin and formation. Primary microplastics are intentionally and directly manufactured in tiny form for use in specific products such as cosmetics (e.g., in scrubs) or in industrial processes. Secondary microplastics , on the other hand, are created when larger plastic products such as bottles or packaging are broken down over a longer period by environmental factors such as sunlight (UV radiation), wind, or mechanical abrasion, and are broken down into ever smaller particles.
